What ports do I need to open for VPN to a Watchguard X700 using PPTP

I need to connect to a Watchguard X700 VPN Connection. I am told I need TCP port 1723 Open. I have that open but from our end they still cant connect.

The connection seems to get half way but does not seem authenticate them

By default we have to block everything outbound.

LVL 1
cbpeeCTOAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

calvinetterCommented:
Sounds like the Watchguard isn't automatically allowing the GRE protocol.  Allow this protocol outbound (& possibly inbound, depending on how intelligent the Watchguard is).

cheers
Rob WilliamsCommented:
Are you connecting to the router, i.e are you using the router as a VPN endpoint or passing through to a VPN server behind the WatchGuard. If the router is the VPN endpoint there is no need to forward anything, however if a VPN server behind the WatchGuard you will need to forward PPTP and GRE traffic to the VPN server device, as mentioned by calvinetter.  PPTP being TCP port 1723, and GRE being protocol 47 (not port 47). I am not familiar with the X700's, but on their SOHO and SOHO6 models you were able to use the Firewall to create a rules for TCP, UDP or Protocol #. You should be able to set one up there for GRE.
Having said that, I thought the WatchGuards allowed GRE traffic by default.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Rob WilliamsCommented:
Thanks  cbpee,
--Rob
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Software Firewalls

From novice to tech pro — start learning today.